Long Answer Questions on Magnetism Class 6 Concise Physics ICSE Solutions Ch-6. In this article you would learn how to solve Long Answer Questions on Magnetism with hint and reason . Visit official Website CISCE for detail information about ICSE Board Class-6.
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Long Answer Questions on Magnetism Class 6 Concise Physics ICSE Solutions
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Physics |
| Class | 6th |
| Chapter-6 | Magnetism |
| Book Name | Concise |
| Topics | Solution of Long Answer Questions |
| Academic Session | 2025-2026 |
Long Answer Questions on Magnetism
Que-1: Draw diagrams of artificial magnets of four different shapes.
Ans- The diagrams of artificial magnets of four different shapes are given below :
Que-2: Describe an experiment to show that the maximum attractive property is at the poles of a magnet.
Ans-Experiment : Bring a bar magnet near small iron nails, it is observed that most of the nails cling near the ends of the magnet and very few nails cling near the middle as shown in below figure.
This shows that the property of attraction is not same every where along the length of the magnet, but it is maximum near the ends and very little in the middle of the magnet.
Que-3: Explain the attractive property of a magnet with the help of an experiment.
Ans- The attractive property of a magnet means that it can pull certain materials, like iron, toward itself. This can be demonstrated with a simple experiment:
Materials needed: A bar magnet, small iron filings or pins, and a sheet of paper.
Procedure:
(i)Place the bar magnet on a table.
(ii)Spread a thin layer of iron filings evenly on a sheet of paper and place it over the magnet.
(iii)Observe how the iron filings move toward the magnet and cluster around its ends.
Observation:
The filings are attracted to the magnet, especially near its poles, forming patterns that show the magnetic field.
Conclusion:
This experiment shows that a magnet attracts magnetic materials like iron, demonstrating its attractive property.
Que-4: Describe a method by which an iron bar can be made a magnet.
Ans- We can use the double touch method to make an iron bar into a magnet.
Double Touch Method :
(i) Take two magnets, P and Q, and an iron bar AB.
(ii)Place the magnets vertically at the centre of the bar with their opposite poles on the same side.
(iii)Keep a cork between the poles of the two magnets.
(iv)Move the magnets together with the cork from the centre towards the end B of the bar.
(v)Without lifting the magnets, slide them back to the end A.
(vi)Repeat this forward and backward movement about 20 times.
(vii)Turn the bar upside down and repeat the same process another 20 times.
(viii)The iron bar becomes a magnet:
(a)End A becomes the north pole.
(b)End B becomes the south pole.
Que-5: Define the term magnetic field of a magnet. How will you recognise it experimentally?
Ans- The space around a magnet in which if a magnetic substance such as small pieces of iron, are placed, they get attracted towards the magnet, is called a magnetic field.
Magnetic field of a magnet can be recognised by following experiment :
If a magnet is placed below a sheet of stiff paper and some iron filings are spread on it, then on tapping the sheet gently, the iron filings are found to arrange themselves in a definite pattern as shown in below figure.
The pattern of iron filings represent the magnetic field of the magnet where its direction is from north pole of magnet to its south pole and the magnetic field is not uniform as It is strong near the magnet while weak at a distance from the magnet.
Que-6: How will you make a bar of iron an electromagnet ? Draw a diagram showing the polarities of an electromagnet.
Ans- A bar magnet can be made electromagnet with the following method :
Electrical Method :
Take the given iron bar AB. Wound several turns of insulated copper wire over the bar. Connect the ends of the wire to a battery through a switch as shown in below figure.
Press the switch to pass current. After some time, the bar AB becomes a magnet. The end A of the bar at which the current enters the coil in clockwise direction becomes the south pole (S) and the end B of the bar becomes the north pole (N). The polarity at the ends of the bar can be reversed by reversing the direction of current in the coil.
Que-7: Suppose you are given a long bar magnet and you are asked to break it into four small magnets. Draw diagrams showing the polarities of each broken part.
Ans- Magnetic poles always exist in pairs. If a long bar magnet is broken into four pieces, each part will behave like a magnet with its north and south poles as shown in the diagram below:
Que-8: What is magnetic induction ? Explain with the help of a diagram.
Ans- When a piece of iron is placed nearby (or brought near) a magnet, it acts as a magnet i.e., it acquires the properties of a magnet temporarily. But as soon as the magnet is removed, the iron piece no longer remains a magnet. This process is called magnetic induction.
Magnetic induction Method :
To make an iron nail a magnet by magnetic induction, we proceed as follows :
(i) Take a long nail. Put it on the arm of a stand passing through a cork as shown in figure (a). Spread some iron pins on the base of the stand. You will find that the pins do not move towards the nail.
(ii) Now bring one pole (say north pole) of a magnet A near the head of the nail as shown in figure (b). You will notice that now some pins begin to cling to the nail. This shows that in the presence of the magnet, the nail has become a magnet. Actually the head of the nail near the north pole N of the magnet A acquires the south (S) polarity and its tip acquires the north (N) polarity.
(iii) Then remove the magnet A as shown in figure (c). You will see that all the pins fall down. This shows that on removing the magnet A, the nail loses its magnetic property. Thus by magnetic induction, the nail or bar becomes a temporary magnet only in the presence of an external magnet.
Que-9: You are given an iron nail, a torch cell and a long piece of insulated copper wire. With the help of a labelled neat diagram, describe in steps how you will make the nail, an electromagnet.
Ans- Procedure of making of electromagnet :
Take a long piece of insulated copper wire. Wrap it around the nail as shown in figure below.
Attach the free ends of the wire to the terminals of the torch cell. Now we have an electromagnet with which we can pick up small pieces of iron such as paper clips or allpins of iron.
Que-10: Describe an experiment to illustrate that like poles repel while unlike poles attract.
Ans- Experiment :
1. Take two bar magnets A and B. Suspend one magnet A with a silk thread from a support so that it is free to swing. The magnet will come to rest in the north-south direction. The north pole of the magnet is in the north direction and the south pole of the magnet is in the south direction.
2. Now holding the other magnet B in your hand, bring its north pole near the north pole of the suspended magnet A (such that the two magnets do not touch each other) as shown in below figure (a). It is observed that the suspended magnet A moves away from the magnet B. This shows that like poles repel each other.
3. Now bring the south pole of the magnet B near the north pole of the suspended magnet A as shown in below figure (b), without touching it. It is observed that the magnet A moves towards the magnet B. This shows that unlike poles attract each other.
— : End of Long Answer Questions on Magnetism Class 6 Concise Physics ICSE Solutions :–
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